Prophet Ibrahim had two children, Ismail and Ishaaq. Ishaaq was from his wife Sarah and was about 10-15 years younger than Ismail. Ishaaq was raised with his father in Palestine. Ishaaq grew up to be righteous and had a son called Yakub. Yakub had ten children from one woman and two children from another woman. These 12 children are known as the Tribes of Israel. Most of them went away from Islam and were non-Muslims. The majority of Prophets came from Ishaaq.